This is not a Hidden Mickey thing, but a piece of trivia....
When they replace an attraction anywhere at WDW, a logo from the original attraction is displayed somewhere in the new attraction. It may not be in plain sight - or may be somewhere only accessible by CM's.... but it's there!
Next time you are at Mission Space, look at the panel in front of the main register at the gift shop. One of the logo's from the original "Horizon's" attraction is built into the panel.
The former logo to "Kitchen Kaberet/Food Rocks" is located in an area only accessible to CM's.